A fluorescing, copolymer (Q)-bearing, quaternary ammonium pendant was mixed with excess natural salmon sperm DNA with a molecular weight of 1.3×10⁶ (2,000 base pairs) to afford highly fluorescing, complex mixtures. The fluorescence life-time of the polymer Q was greatly increased when mixed with DNA: for the mixture of Q:DNA=1:750 the fast and slow decay lifetimes increased from ca. 10 to 100 ps and from 20 ps to ca. 1 ns, respectively. The enhanced fluorescence of the mixtures was ascribed to efficient compartmentalization and reduced conformational relaxation of the polymer Q by complexation with excess DNA.

中文翻译：

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由天然DNA和带有季铵盐侧基的聚（芴乙烯撑-alt-亚苯基）制备的高荧光固体DNA-阳离子聚电解质复合物

将带有发荧光，共聚物（Q）的季铵盐侧链与分子量为1.3×10 ⁶（2,000个碱基对）的过量天然鲑鱼精DNA混合，以提供具有高度发荧光的复杂混合物。当与DNA混合时，聚合物Q的荧光寿命大大增加：对于Q：DNA = 1：750的混合物，快和慢衰变寿命从大约5％开始增加。10至100 ps和20 ps至ca. 分别为1 ns。混合物增强的荧光归因于通过与过量DNA复合而有效的分隔和降低了聚合物Q的构象松弛。